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<p>[QUOTE="robinjojo, post: 5001508, member: 110226"]Donna, that's a really nice coin, but I wonder if the green accumulations might be PVC residue. I cannot really tell from the photos. They could be oxide deposits. </p><p><br /></p><p>Whenever I encounter a coin such as this one, I put it in a bath of 100% acetone. If the deposits are PVC residue, they will dissolve, if not, they will be unaffected by the acetone, as will the rest of the coin. Just a rinse with distilled water and gentle drying in a cloth will do the job.</p><p><br /></p><p>Just a suggestion....[/QUOTE]</p><p><br /></p>
[QUOTE="robinjojo, post: 5001508, member: 110226"]Donna, that's a really nice coin, but I wonder if the green accumulations might be PVC residue. I cannot really tell from the photos. They could be oxide deposits. Whenever I encounter a coin such as this one, I put it in a bath of 100% acetone. If the deposits are PVC residue, they will dissolve, if not, they will be unaffected by the acetone, as will the rest of the coin. Just a rinse with distilled water and gentle drying in a cloth will do the job. Just a suggestion....[/QUOTE]
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